Why do international institutions behave as they do? International organizations (IOs) have emerged as significant actors in global governance, whether they are overseeing monetary policy, setting trade or labor standards, or resolving a humanitarian crisis. They often execute international agreements between states and markedly influence domestic law, which makes it important to analyze how international institutions behave and make policy. Conducting an ethnographic analysis of the internal dynamics of IOs, including their formal and informal norms, incentive systems, and decision-making processes, can usefully aid in understanding institutional behavior and change. This article analyzes the organizational culture of one particularly powerful international institution—the World Bank (the Bank)—and explores why the Bank has not adopted a human rights policy or agenda.